フラッシュ蒸発を伴う圧縮水の先細ノズルにおける臨海流量

概要

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As the first step to understand the general characteristics of flashing choked flow of initially subcooled　liquid associated with flash-spinning process, the discharge of flashing choked flow of initially subcooled water　through a converging nozzle has been investigated theoretically by using an isentropic, homogeneous,　equilibrium (I. H. E.) model for two-phase flows. The dependence of the pressure from l to 10 [MPa], the　temperature from 350 to 550 [K] and the subcooling from 0 to l00 [K] in the nozzle inlet on the critical mass　velocity is indicated in a series of graphs and is discussed. Also, for the most case of the present calculation, the flow is choked on the point of the saturated liquid line corresponding to the nozzle exit position and　then the flow becomes supersonic.
九州大学の論文